package lanqiao;

public class l2016_01 {
    public static void main(String arg[]){
        System.out.println(MM());
    }

    public static int MM(){
        int sum=0;
        int zsum=0;
        for (int i=1;i<101;i++){
            sum=sum+i;
            zsum=zsum+sum;
        }
        return zsum;
    }
}
